Treadle-operated machine for setting staples.



T W. E. ELLIOTT. TREADLE OPERATED MACHINE FOR SETTING STAPLES.APPLIOATIbN FILED MAB.12, 1907. RENEWED APR. 26, 1909.

945,770. Patented Jan. 11,1910. Y 3 SHEETS-$311! 1.

avwewtoz witmemeo 35 ALZZY/L W val/(2U a d W. E. ELLIOTT. TREADLEOPERATED MACHINE FOB. SETTING STAPLES. APPLICATION FILED MAR. 12, 1907.RENEWED APE. 26,1909.

945,770. Patented Jan. 11,1910. 3 SHEETS-QUIET 2.

amw wfoz q/vitnwoea I I am- W. E. ELLIOTT. TREADLE OPERATED MACHINE FORSETTING STAPLES. APPLICATION FILED MAR. 12, 1907. RENEWED APR. 26, 1909.

945,770. Patented Jan. 11,1910.

3 SHEETS-SHEET 3.

I a citizen of the United States of America,

UNITE WILLIA E. ELLIOTT, or GRAND RAPID-s MICHIGAN.

' TREADLE-OPERATED MACHINE FOR SETTING STAPLES.

Specification 01 Letters Patent. Patented Jan. 11, 1910.

Application filed March 12, 1907, Serial No. 361,897. Renewed April 26,1909.. Serial'No. 492,316.

To all whom it may concern:

Be it known that I, WILLIAM E. ELLIOTT,

residing at Grand Rapids, in the county of Kent and 'State of Michigan,have invented certain new and useful Improvements in T readle-OperatedMachines for Setting Staples; and I do herebydeclare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make andusethe same.

My invention relates to improvements in treadle operated machines forsetting staples, rivets, and other analogous fastenings, and its objectis to provide the same with automatic means for adjusting and limitingthe stroke of the driver, to provide improved means for preventing anincomplete operatlon of the machine before returning to startingposition, and to provide the device with various new and useful featureshere inafter more fully described and particularly pointed out in theclaims.

My invention consists essentially of an unyielding and adjustable stopseparate from the guide to limit the stroke of the lever that operatesthe driver and means for connecting the stop with the guide of'themachine, whereby the guide adjusts the stop according to variousthicknesses of material placed between the guide and die; in a pawladapted to prevent any return stroke until the working stroke iscompleted; a stop to prevent operating the machine when there is nostaple in the guide and. in the various combinations and arrangement ofparts, substantially as illustrated in the accompanying drawings,showing a staple setting machine embodying my invention, in whichdrawings: v

Figure 1 is a side elevation of the machine showing the adjustable stop;Fig. 2 an elevation of the other side of the machine. Fig.

*3 a front view of the machine with the cap removed to show the guide;Fig. 4 a plan at right angles to Fig. 3; Fig. 5 a sectional detail onthe line 55 of Fig. 4;-Fig. 6 a detail of the driver and guide; and Fig.7 a detail of the adjustable stop and slide.

Like numbers refer to like parts in all of the figures.

1 represents the frame of the machine provided with a rigid curved armterminating in a clenching die 2 located opposite a longitudinallymovable staple guide 3. Slidable in this. guide ,is a driver 6 to drivethe staple through the material and against the clenching die 2.

7 is a rod connecting the driver with the movable end of a pivoted arm 8provided with a downward extension 8* to which is pivotally attached arod 44 operated by a treadle (not shown) to depress the arm and operatethe machine.

9 is a shoulder on the arm 8, which shoulder engages an adjustable stop10 pivotally mounted on a longitudinally movable slide l0 'and having aconcave surface en-, gaging an eccentric 11, which eccentric adusts thestop. To rotatively adjust the eccentric 11, a lever 12 is providedwhich is and turns the same on its pivot to yieldingly move the guide 3toward the die 2. In the guideis a pin 22, which engages the lower endof an elongated recess-in the driver to raise the guide away from thedie, and traverse said recess to permit the driver to descend after theguide engages the material placed on the die.

15 is a bed plate fixed on the guide3. Above this plate is a crownratchet wheel 16 mounted on a stud 43 rotative in a head 17 on themovable end of an arm 18 pivoted at the other end to one edge of the bedplate 15. The stud 43 extends through the axis of a detachable disk 46,and the ratchet wheel is provided with a pin 48 to engage an opening insaid disk and rotate the same simultaneously with said wheel. The disk46 is preferably of paste-board or like material and is provided with aseries of perforations equi-distant from its axis and adapted to receiveand detachably hold staples 47 or other fastening devices to be set. Theguideis recessed as at 45 to receive the edge of the disk carrying thestaples, whereby the staples are successively carried to place in theguide as the disk rotates. To rotate the disk, the ratchet 16 isprovided with teeth equal in number to the openings for the staples inthe disk 46, and is engaged by a pawl 20 operated by an intern'icdiatelypivoted lever 31 extending through a recess in a bar 33 on the arm 8,andlaterally and 1011- gitudinally movable in said recess, a shoulder 34on the lever engages the bar and locks the machine when the lever is inthe extreme lower end of the recess.

32 is an incline on the lever which slidably engages the bar and movesthe lever to retract the pawl 20 as the arm 8 descends. As the lever 31returns, it moves the pawl 20 forward, turns the disk, and brings thenext staple into the guide. The described parts are so proportionedthatthepawl has a throw in excess of the space between the points of theratchet teeth on the wheel 16, and thus the staple engages the guidebefore the pawl completes its stroke. The lever is thus stopped by thestaple contacting the guide before it descends far enough to engage theshoulder 34 with the bar. Should there'bc no staple in this opening inthe disk, the disk will rotate further and the lever 31 will descend thefull limit and lock the machine. T he lever must now be manuallyoperated until the disk feeds a staple to place in the guide, when theregular operation of the machine can proceed. To return the lever tolowered position it is connected to the arm 8 by a rod 38 having a slot39 traversed by a screw 40 in the arm 8. The engagement of this screwwith the end of the slot pulls on the rod and thus moves the lever 31downward. To permit the lever to stop short of full movement asdescribed, and also to permit of manually operating the same, the rod 38is connected to a bell crank 36 pivoted on the lever and having onearmslotted concentric to its pivot.-

A stud 35 inserted in the lever traverses this slot. being yieldinglyheld in engagement with the end of the slot by a spring 37. This springwill yield and permit the stud to move in the slot whenever the lever isstopped by the. staple engaging the guide or when the lever is manuallyraised.

41 is a guide for the pawl, and 42 a stop to limit the upward movementof the pawl and arm when removing or replacing a.

disk 46.

27 and 28 are the opposing members of an oppositely projecting pawl,which is oppositely held by the oppositely inclined end of a springactuated dog 30 engaging an oppositely inclined projection 29 on thepawl. This'pawl and dog are mounted on the extension 8 of the arm 8 andcontrol the move ment of said arm by engaging a ratchet 25 fixed on theframe and provided with a shoulder 26 to shift the dog and recessesengaged by the do This shoulder throws the dog 27 back suflcient to movethe projection 29 past the point on the pawl 30 and thus bring the dog28 into action. It now the arm is moved downward, the dog 28 will holdit from returning by engaging the recesses in the ratchet. To permit thereturn stroke of the arm when fully depressed, the dog 28 must betripped out. of action and the dog 27 thrown into action. This movement.must occur when the stroke of the arm is completed, which stroke isvariable, due to the action of the adjustable stop described andaccording to thickness of material in the machine. To provide anautomatic and adjustable trip, a slide 23 is provided which has ashoulder 24 to engage the dog 28 and throw it out of action by movingthe point of the projection 29 past thev point ot the pawl 30, as beforedescribed. This slide is automatically adjusted by the guide 3 by meansof an arm on the slide engaged with a recess 5 in the guide. Thus thethicker the material the earlier the shoulder 24 will engage and tripthe dog 28, which movement will thus at all times occur at or before thecontact of the shoulder 9 with the stop 10. When near the end of theupstroke of the arm 8, the dog 27 will engage a recess in the ratchet 25shown just below the shoulder 26 and prevent return or down stroke ofthe arm while feeding the staple until the up stroke is completed andthe, dog tripped by the shoulder 26, which shoulder can be fixed for thereason that the termination of the upstroke is fixed. During all of theother part ofthe upstroke, it is not necessary to restrain the movementof the arm, and thus the stroke upon a staple may be repeated ifnecessary to further clench the same.

What I claim is:

1. The combination of a clenching die, a guide movable toward and fromthe die. a driver slidable in the guide, an unyielding and adjustablestop separate and apart from the guide to limit the stroke of thedriver, and means for connecting the stop and the guide, whereby theguide automatically ad justs the stop.

2. The combination of a clenching die, a guide movable toward and fromthe die, a driver slidable in the guide, an arm to operate the driver,an adjustable stop to limit the movement of the arm, and means for conto limit the stroke of the driver, a cam to' adjust the stop, and meansfor connecting the cam and guide, whereby the movement of the guiderotates the cam and adjusts the stop.

llltl 4. The combination of a clenching die, a

guide movable toward and from the die, a driver slidable in the guide,an adjustable stop to limit the movement of the driver, a pivoted leverconnected at one end to the guide and connected at the other end to theadjustable stop, and a spring connected to the lever to ward the die.

5. The combination of a clenching die, a guide movable toward and fromthe die, a driver slidable in the guide and having an elongated recess,a pin in the guide and engaging the end of the recess to raise theguide. a pivoted arm to operate the driver. an adjustable stop to limitthe movement of the arm, a cam to adjust the stop, a pivoted leverconnected to the guide at one end and connected to the cam at the otherend, and a spring to yieldingly move the guide towa'rd the die.

6. The combination of a clenching die, a guide movable toward and fromthe die, a driver slidable in the guide, a spring to yieldingly move theguide toward the die,a pivoted arm connected to the guide and driver tooperate the same and having a shoulder, a stop engaged by'the shoulderand pivoted on a slide, a rotative cam engaging the stop, aleverconnecting the cam an guide, whereby. the guideadjusts the cam and stopto limit. the stroke of the driver, and a spring engaging the lever.

. 7-. The combination of'a clenching die, a guide movable toward andfrom the die, a

,driver slidable in the guide, reciprocating means for operating thedriver, a double acting pawl to control said means, means for reversingthe pawl at each'end of the stroke of the driver, one of said reversingmeans being adjustable, and means for connecting the reversin means tothe guide, whereby it is adjuste thereby.

8. The combination of a clenching die, a guide movable toward and fromthe die, a driver slidable in the guide, a pivoted arm to operate thedriver, an alternately and oppositely acting pawl mounted on the arm todcontrol tllie same, (it ratchet alterngtelg an opposite en a e b theawl, a Xe shoulder and an hfiusta le sh ulder to alternately shift thepawl and reverse its action, and means for connecting the adjustableshoulder and the guide whereby the guide adjusts the said shoulder.

9. The combination of a clenching die, a guide movable toward and fromthe die, a driver slidable in the guide, an arm connected to the driverto operate the same, an oppositely and alternately acting pawl pivotedon the arm, a ratchet engaged by the pawl, a shoulder on the ratchettoshift the pawl at the end of the return stroke of the arm, a slide onthe ratchet and having a shoulder to shift the pawl at theend of theyieldingly move the guide todown stroke of the arm, and means forconnecting the slide and guide, whereby the guide adjusts the slide.

10. The combination of a clenching die a reciprocating guide having arecess in its positely shift the dog, and an arm on the slide engagingthe recess in the guide.

11. The combination of a guide, having a lateral recess, a driverslidable in the guide, an arm to operate the driver, a disk having itsedge rotative in the recess and adapted to carry staples or fasteners insuccession into the guide, an arm 'to'operatethe driver, an

pawl to intermittently rotate the disk, a lever to operate the pawl andhaving a shoulder to hold the arm when the disk fails to place a stapleor fastener in the guide.

12. The combination of a guide having a lateral recess, a driverslidable in the guide, an arm to operate the driver, a disk having itsedge rotative in the recess of the guide and having a series of openingseq ui-di stant from 1ts arms to retam staples or fasteners,

a ratchet connected to thedisk and having teeth equal in number to thesaid openings, a. pawl engaging said ratchet and having a stroke greaterthan the distance between said teeth, a recess bar on the arm, and alever to operate the pawl and having a shoulder and an inclined surfaceto engage the bar.

13. The combination of a guide having a lateral opening, a bed plateattached to the guide, an arm pivoted to the edge of the bed plate andextending over the center'of the same, a stud rotative in the arm, acrown ratchet wheel attached to the stud, a driver in the guide, an armconnected to the driver to operate the same, a pawl engaging the ratchetwheel, a pivoted lever on which the pawl is mounted, said lever alsohaving a shoulder and an incline, a bar on the arm and having a recessin which the lever is longitudinally and laterally movable, a bell crankpivoted on saidlever and having a slotted arm, a stud in the lever andtraversing the slot in the bell-crank, a spring on the bell crankengaging the stud, and a rod con-' nected to the other arm of the bellcrank and having a shoulder and an incline, a driver I of the slot, aslotted rod attached to the bell 10 in the guide, a pivoted arm tooperate the I crank, and a screw in the arm and traversing driver, a baron the arm and having a rethe slot in the rod.

cess to receive the lever and also engaged by In testimony whereof Iafiix my signature the shoulder and incline of the lever, a bell inpresence of two Witnesses,

crank pivoted on the. lever and having a slot WILLIAM E. ELLIOTT. in onearm, a stud in the lever and traversing Witnesses:

the slot, 3 sprin on the bell crank engaging GEORGIANA CHACE,

the stud and yie dingly holding it in one end LUTHER V, MOULTON.

